Does this look like gas or tig rework on the I/C photo. I wonder if the work could be gas/stick soldering versis TIG because of the tight spaces available.

THis is a I/C that failed and was cut open. THe beads look like TIG but I wanna ask someone else's opinion before I am satisfied here.

If its TIG I wonder how they knew where to do this as there are SO MANY welds on the I/C and on BOTH sides of the sample unit.

Does it make sense that there are many cracks to fix up?? Iam assuming that this is an oven brazed Al I/C and they pressure tested it after 'assembly' ??